13219277952 has 128 divisors (see below), whose sum is σ = 36011989440. Its totient is φ = 4295098368.

The previous prime is 13219277921. The next prime is 13219277963. The reversal of 13219277952 is 25977291231.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2492968 + ... + 2498264.

Almost surely, 2^13219277952 is an apocalyptic number.

13219277952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13219277952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18005994720).

13219277952 is an abundant number, since it is smaller than the sum of its proper divisors (22792711488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13219277952 is an equidigital number, since it uses as much as digits as its factorization.

13219277952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478 (or 5466 counting only the distinct ones).

The product of its digits is 476280, while the sum is 48.

The spelling of 13219277952 in words is "thirteen billion, two hundred nineteen million, two hundred seventy-seven thousand, nine hundred fifty-two".